Input: DC 5V 2A, 9V 2A Output 1: 5W/7.5W/10W Coil: 1+2 coils frenquency range: 109.295-175.481KHz Size: 192.4*101.7*118.6mm USB-A*2.5V 1A (TOTAL 1A) Output2: 2.5W Charging distance: 4mm-6mm Max RF power: at 10 distance